<template>
  <el-dialog :visible.sync="visible" :title="!dataForm.id ? $t('add') : $t('update')" :close-on-click-modal="false" :close-on-press-escape="false">
    <el-form :model="dataForm" :rules="dataRule" ref="dataForm" @keyup.enter.native="dataFormSubmitHandle()" :label-width="$i18n.locale === 'en-US' ? '120px' : '100px'">
      <el-form-item label="班级" prop="classInfoId">
        <el-select
          style="width: 300px;"
          v-model="dataForm.classInfoId"
          filterable
          clearable
          placeholder="请选择班级"
        >
          <el-option
            v-for="item in classInfoList"
            :key="item.id"
            :label="item.className"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </el-form-item> 
      <el-form-item label="学生" prop="studentId">
        <el-select
          style="width: 300px;"
          v-model="dataForm.studentId"
          filterable
          clearable
          placeholder="请选择学生"
        >
          <el-option
            v-for="item in studentList"
            :key="item.id"
            :label="item.realName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </el-form-item> 
      <el-form-item label="绩点" prop="gpa">
        <el-input-number
          style="width: 300px;"
          :precision="2"
          :min="0"
          :controls="false"
          v-model="dataForm.gpa"
          placeholder="绩点"
        ></el-input-number>
      </el-form-item>
      <el-form-item label="综测分" prop="testingScore">
        <el-input-number
          style="width: 300px;"
          :precision="2"
          :min="0"
          :controls="false"
          v-model="dataForm.testingScore"
          placeholder="综测分"
        ></el-input-number>
      </el-form-item>
      <el-form-item label="困难等级" prop="difficultyLevel">
          <el-select
            style="width: 300px;"
            v-model="dataForm.difficultyLevel"
            clearable
            placeholder="请选择困难等级"
          >
            <el-option
              v-for="item in difficultyLevelList"
              :key="item.value"
              :label="item.label"
              :value="item.value"
            >
            </el-option>
          </el-select>
        </el-form-item>
      </el-form>
    <template slot="footer">
      <el-button @click="visible = false">{{ $t('cancel') }}</el-button>
      <el-button type="primary" @click="dataFormSubmitHandle()">{{ $t('confirm') }}</el-button>
    </template>
  </el-dialog>
</template>

<script>
import debounce from 'lodash/debounce'
export default {
  data () {
    return {
      visible: false,
      dataForm: {
        id: '',
        classInfoId: '',
        studentId: '',
        gpa: '',
        testingScore: '',
        difficultyLevel: ''
      },
      classInfoList: [],
      studentList: [],
      difficultyLevelList: [
        {
          label: '暂无',
          value: 0
        },
        {
          label: '一般困难',
          value: 1
        },
        {
          label: '中等困难',
          value: 2
        },
        {
          label: '非常困难',
          value: 3
        }
      ]
    }
  },
  computed: {
    dataRule () {
      return {
        classInfoId: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        studentId: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        gpa: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        testingScore: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        difficultyLevel: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    init () {
      this.visible = true
      this.getClassInfoList();
      this.getStudentList();
      this.$nextTick(() => {
        this.$refs['dataForm'].resetFields()
        if (this.dataForm.id) {
          this.getInfo()
        }
      })
    },
    getClassInfoList() {
      this.$http.get("/classinfo/classinfo/list").then(({ data }) => {
        this.classInfoList = data.data;
      });
    },
    getStudentList() {
      this.$http.get("/sys/user/studentList").then(({ data }) => {
        this.studentList = data.data;
      });
    },
    // 获取信息
    getInfo () {
      this.$http.get(`/classinfo/stuinfo/${this.dataForm.id}`).then(({ data: res }) => {
        if (res.code !== 0) {
          return this.$message.error(res.msg)
        }
        this.dataForm = {
          ...this.dataForm,
          ...res.data
        }
      }).catch(() => {})
    },
    // 表单提交
    dataFormSubmitHandle: debounce(function () {
      this.$refs['dataForm'].validate((valid) => {
        if (!valid) {
          return false
        }
        this.$http[!this.dataForm.id ? 'post' : 'put']('/classinfo/stuinfo/', this.dataForm).then(({ data: res }) => {
          if (res.code !== 0) {
            return this.$message.error(res.msg)
          }
          this.$message({
            message: this.$t('prompt.success'),
            type: 'success',
            duration: 500,
            onClose: () => {
              this.visible = false
              this.$emit('refreshDataList')
            }
          })
        }).catch(() => {})
      })
    }, 1000, { 'leading': true, 'trailing': false })
  }
}
</script>
